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All results from a given calculation for HOBr (Hypobromous acid)

using model chemistry: PBEPBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-2636.896509
Energy at 298.15K-2636.900457
HF Energy-2636.896509
Nuclear repulsion energy90.553432
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3284 3132 11.76      
2 A' 1153 1099 50.57      
3 A' 627 598 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 2531.9 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 2414.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBE/3-21G*
ABC
18.08294 0.33245 0.32645

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.976 1.688 0.000
O2 0.023 1.500 0.000
Br3 0.023 -0.391 0.000

Atom - Atom Distances (Å)
  H1 O2 Br3
H11.01612.3068
O21.01611.8909
Br32.30681.8909

picture of Hypobromous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 Br3 100.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.359      
2 O -0.439      
3 Br 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.686 0.007 0.000 1.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.115 -3.242 0.000
y -3.242 -21.170 0.000
z 0.000 0.000 -24.257
Traceless
 xyz
x 0.599 -3.242 0.000
y -3.242 2.016 0.000
z 0.000 0.000 -2.614
Polar
3z2-r2-5.229
x2-y2-0.944
xy-3.242
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.194 -0.324 0.000
y -0.324 3.911 0.000
z 0.000 0.000 1.589


<r2> (average value of r2) Å2
<r2> 41.236
(<r2>)1/2 6.422